ASTM D6745-22
Standard Test Method for Linear Thermal Expansion of Electrode Carbons

Standard No.

ASTM D6745-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6745-22

Scope

1.1 This test method covers the determination of the coefficient of linear thermal expansion (CTE) for carbon anodes and cathodes used in the aluminum industry, in baked form, by use of a vitreous silica dilatometer. 1.2 The applicable temperature range for this test method for research purposes is ambient to 1000 °C. The recommended maximum use temperature for product evaluation is 500 °C. 1.3 This test method and procedure is based on Test Method E228, which is a generic all-encompassing method. Specifics dictated by the nature of electrode carbons and the purposes for which they are used are addressed by this procedure. 1.4 Electrode carbons in the baked form will only exhibit primarily reversible dimensional changes when heated. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D6745-22 Referenced Document

• ASTM E228 Standard Test Method for Linear Thermal Expansion of Solid Materials With a Vitreous Silica Dilatometer
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D6745-22 history

• 2022 ASTM D6745-22 Standard Test Method for Linear Thermal Expansion of Electrode Carbons
• 2011 ASTM D6745-11(2015) Standard Test Method for Linear Thermal Expansion of Electrode Carbons
• 2011 ASTM D6745-11 Standard Test Method for Linear Thermal Expansion of Electrode Carbons
• 2011 ASTM D6745-06(2011) Standard Test Method for Linear Thermal Expansion of Electrode Carbons
• 2006 ASTM D6745-06 Standard Test Method for Linear Thermal Expansion of Electrode Carbons
• 2001 ASTM D6745-01 Standard Test Method for Linear Thermal Expansion of Electrode Carbons